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Re: [widgets]

From: Marcos Caceres <marcosscaceres@gmail.com>
Date: Tue, 24 May 2011 16:17:53 +0200
Message-ID: <4DDBBE11.3040803@gmail.com>
To: Scott Wilson <scott.bradley.wilson@gmail.com>
CC: Doug Schepers <schepers@w3.org>, public-webapps@w3.org
On 5/23/11 10:18 AM, Scott Wilson wrote:
> Within the education vertical, the IMS consortium created a basic "launch" protocol for widget-like applications including user information and custom parameters [1] and we created a shim for using it with Apache Wookie [2]. So certainly a tractable area; If anything the IMS spec could work with far fewer parameters.

agreed. Looks IMS looks far too complicated.

In most cases, all you want is:

$ engine -x y -z 123 some.wgt



> That said I don't think it would be difficult to construct a simple launch process for the STB that mapped parameters like programme/channel context information onto one of Preferences or Feature Parameters.
> [1] http://www.imsglobal.org/lti/blti/bltiv1p0/ltiBLTIimgv1p0.html
> [2] http://code.google.com/p/basiclti4wookie/
> On 23 May 2011, at 00:51, Doug Schepers wrote:
>> Hi, Richard-
>> Depending on your timeline, this could be a v2 feature...
>> Any interest in following that up?
>> Regards-
>> -Doug
>> Marcos Caceres wrote (on 5/20/11 3:47 PM):
>>> On 5/20/11 5:19 PM, Richard Felton wrote:
>>>> Hi,
>>>> Hopefully this is the right place to ask this question.
>>>> I'm looking at the possibility of using W3C widgets as a web-app
>>>> mechanism on an IP connected set-top box. I've had a look through the
>>>> specifications available and I can't see a way to pass launch parameters
>>>> to a widget. Is this possible or has it been ruled out for good reason?
>>>> For example, if I want to write a branded media player application (in a
>>>> widget) it'd be useful if I could allow the set-top box user interface
>>>> to pass the identifier of the programme to be played into the widget.
>>>> Effectively I'm looking for a way for a widget to specify something
>>>> similar to command line options so that the launching entity can control
>>>> the state the widget starts up in.
>>> There is no standardized means to do this today, I'm afraid. However,
>>> you could either pre-generate the widget to contain such information, or
>>> acquire it from from the set top box through a http request. Another
>>> means might be to create a proprietary<feature>:
>>> <widget ...>
>>> <feature name="tv:startup">
>>> <param name="custom_config" value="{'a': 'b', 'c': 'd'}">
>>> <feature>
>>> </widget>
Received on Tuesday, 24 May 2011 14:18:24 UTC

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